Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
I, Q COUNTER CIRCUIT AND METHOD FOR TIME-OF-FLIGHT IMAGE SENSOR
Document Type and Number:
WIPO Patent Application WO/2021/149625
Kind Code:
A1
Abstract:
A time-of-flight device comprises a pixel array including a plurality of pixel circuits arranged in an array, respective ones of the plurality of pixel circuits including a first photodiode configured to selectively output two analog signals respectively via two paths, and including a second photodiode configured to selectively output two analog signals respectively via two paths; a signal line coupled to the first photodiode and a second photodiode; and processing circuitry including: a comparator configured to compare a voltage of the signal line with a reference signal and to output a comparison result, and a counter configured to perform a count based on the comparison result in response to a count control signal, wherein the count control signal is configured to switch the counter between an up count mode and a down count mode while a count value is held in the counter.

Inventors:
SHVARTZ ITAI (JP)
ILAN ELAD (JP)
Application Number:
PCT/JP2021/001425
Publication Date:
July 29, 2021
Filing Date:
January 18, 2021
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
SONY SEMICONDUCTOR SOLUTIONS CORP (JP)
International Classes:
G01S17/894; G01S7/4914; G01S7/4915; G01S17/36; G01S17/86; H04N5/369; H04N5/378
Domestic Patent References:
WO2018180660A12018-10-04
Foreign References:
US20190208150A12019-07-04
US20180205897A12018-07-19
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
Download PDF: